The fight ended with Ali, then still known as Cassius Clay, storming out as fans booed, unhappy with the boxing on show.

He told them: "All booing must stop when the king's in the ring."

At the time Ali was going through one of the most turbulent times in his life.

His marriage to Sonji Roi which had taken place the year before was already under pressure.

Ali was coming under the influence of strict branch of Islam and criticised Roi for dressing inappropriately and wearing make-up. The couple later divorced.

His trip to Glasgow was not long before he decided to change his name to Muhammad Ali from Cassius Clay.

Ali was also still dealing with the death of civil rights activist Malcolm X who had been killed on February 21 that year. The pair had been close friends but fell out as their beliefs began to differ.